| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 17.1° | 6.3° | 126.8mm | 9.6 | 72 |
| February | 19° | 8.4° | 92.3mm | 9.1 | 79 |
| March | 22.8° | 11.8° | 95.4mm | 8.8 | 82 |
| April | 26.2° | 15.1° | 113.6mm | 7.4 | 85 |
| May | 30.1° | 19.6° | 142.8mm | 8.1 | 71 |
| June | 32.6° | 22.8° | 172.7mm | 12 | 54 |
| July | 33.2° | 24° | 162mm | 14.2 | 47 |
| August | 33.7° | 23.9° | 160.9mm | 11.9 | 49 |
| September | 31.6° | 21.3° | 130mm | 9.4 | 63 |
| October | 27.6° | 15.5° | 114.5mm | 7 | 84 |
| November | 22.2° | 10.2° | 107.3mm | 8.3 | 83 |
| December | 18.4° | 7.5° | 132.4mm | 9.6 | 76 |
January in Lafayette averages a daily high of 17.1°C with nights around 6.3°C. Expect roughly 9.6 wet days totalling 126.8mm. Generally workable, with some weather to plan around.
February in Lafayette averages a daily high of 19°C with nights around 8.4°C. Expect roughly 9.1 wet days totalling 92.3mm. Comfortable conditions for being outdoors all day.
March in Lafayette averages a daily high of 22.8°C with nights around 11.8°C. Expect roughly 8.8 wet days totalling 95.4mm. Comfortable conditions for being outdoors all day.
April in Lafayette averages a daily high of 26.2°C with nights around 15.1°C. Expect roughly 7.4 wet days totalling 113.6mm. Comfortable conditions for being outdoors all day.
May in Lafayette averages a daily high of 30.1°C with nights around 19.6°C. Expect roughly 8.1 wet days totalling 142.8mm. Generally workable, with some weather to plan around.
June in Lafayette averages a daily high of 32.6°C with nights around 22.8°C. Expect roughly 12 wet days totalling 172.7mm. Demanding conditions — pack for it and plan indoor options.
July in Lafayette averages a daily high of 33.2°C with nights around 24°C. Expect roughly 14.2 wet days totalling 162mm. Demanding conditions — pack for it and plan indoor options.
August in Lafayette averages a daily high of 33.7°C with nights around 23.9°C. Expect roughly 11.9 wet days totalling 160.9mm. Demanding conditions — pack for it and plan indoor options.
September in Lafayette averages a daily high of 31.6°C with nights around 21.3°C. Expect roughly 9.4 wet days totalling 130mm. Generally workable, with some weather to plan around.
October in Lafayette averages a daily high of 27.6°C with nights around 15.5°C. Expect roughly 7 wet days totalling 114.5mm. Comfortable conditions for being outdoors all day.
November in Lafayette averages a daily high of 22.2°C with nights around 10.2°C. Expect roughly 8.3 wet days totalling 107.3mm. Comfortable conditions for being outdoors all day.
December in Lafayette averages a daily high of 18.4°C with nights around 7.5°C. Expect roughly 9.6 wet days totalling 132.4mm. Comfortable conditions for being outdoors all day.
Each month scores out of 100. It starts at 100 and loses points for daytime highs outside a 20–27°C band, for wet days, and for nights below 2°C. Nothing else is weighted in — no crowd data, no prices, no opinion. Lafayette peaks at 85.
Based on 30 years of records, February–April scores highest for comfort in Lafayette, balancing daytime temperature against rainfall.
August is the warmest, averaging a daily high of 33.7°C.
June is the wettest, averaging 172.7mm of rain across roughly 12 wet days.
January is the coolest month, with average daily highs around 17.1°C.